It’s Age 774, Goku and Vegeta are about to power up so that Kid Buu is enticed to come to the Sacred World of The Kais to fight them both. It’s at this moment they are approached by a purple-skinned young man with red eyes and white hair.
“Who the hell are you?” Vegeta demands in a threatening, yet cautious tone.
“I’m a wizard and I’m here to help you send Buu packing.” Answers the smirking Mysterious Youth.
“Sorry, but we don’t want your help.” Goku explains. “Three fighting against one wouldn’t be fair.”
“No, no. You misunderstand, it’s just you two who’re gonna fight.” The Mysterious Youth presses. “I can bring out a fighter’s hidden potential just like the Old Kai.”
“That’s so awesome!!” Goku yells, eyes brimming with newfound hope. “Great, I’m sold.”
“So just our hidden potential? Very well.” Vegeta says, agreeing to the Youth’s aid.
“ALRIGHT! Let's get started!” Says an excited Youth. The Mysterious Youth raises his hands and begins the process of Increasing the two saiyans’ power levels all the while, regrowing their tails and bombarding them with high concentrations of blitz waves against Goku and Vegeta’s knowledge.
Sensing both Goku and Vegeta’s power increasing, Buu suddenly appears on the World of the Kais and he’s looking for a fight. As he’s about to charge at them, a rock hits the side of the majin’s head.
Stolen novel; please report.
“D’ya think you can blow up the Earth and get away with it?! Try pickin’ on someone your own size!!” Hercule says boldly, challenging Kid Buu. Hercule then takes the moment to do a series of mocking gestures. “What the matter? Is Buu scared to fight the champ?”
A now annoyed Buu goes to chop Hercule’s head off, but stops short just a few inches from the last earthling’s neck. Kid Buu then clutches his head and keels over in pain.
“You got a migraine or something…?” Hercule asks. He stares, completely taken aback as to what’s now happening, but then quickly regains his composure. ”AHA, I don’t blame you for being intimidated by my greatness.”
At this moment, Kid Buu spits out a marble-like object some distance away. It lands and then erupts into an unconscious Fat Buu.
“BUU??!!!!” Hercule cries out as he runs to check on his friend.
Kid Buu takes the opportunity to line up a shot at Hercule, but is then blasted away. Kid Buu regenerates and turns to face the ones who shot at him.
“Ha ha ha, I can feel the power!” An SS4 Vegeta laughs, enraptured by his new power.
“I’ve done all I can here, later. Oh and you can call me, Fu.” Fu says as he opens a portal and leaves. “Ciao!”
“I hope you’re reborn someday as a good person.” SS4 Goku says as he kicks Kid Buu into the air. Goku then proceeds to finish Kid Buu off with a Super Kamehameha. “Later.”
Kid Buu was destroyed and this timeline lived peacefully, until Beerus appeared looking for the Super Saiyan God.
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I can’t believe I was able to get so much energy from making such a minor change!! A giddy Fu thinks to himself as he arrives back at his laboratory. As Fu ponders on what other timelines he should experiment with, he notices he’s not alone.
“Who’s there?” Fu calls out, drawing his blade. “Come on o~ut. I know you’re here and I’d rather not blow up my stuff.”
“Fu, is it?” Asks a beautiful, two-horned woman with white skin and a black gown. “Most call me Demona and we need to talk.”